Stereolithography
(SL) is one of three additive processes available at Vikled Molding. SL uses an
ultraviolet laser focused to a small point to draw on the surface of a liquid
thermoset resin. Where it draws, the liquid turns to solid. This is repeated in
thin, two-dimensional cross-sections that are layered to form complex
three-dimensional parts. SL provides the widest selection of material, best
feature resolution and smoothest surface finish. It works well for very small
parts and complex geometries during early prototyping.

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Selective Laser Sintering

Selective laser sintering (SLS) is
one of three additive processes available at Vikled Molding. During the SLS
process, a CO2 laser draws onto a hot bed of thermoplastic powder, where it
lightly sinters (fuses) the powder into a solid. After each layer, a roller
lays a fresh layer of powder on top of the bed and the process repeats. SLS
uses a nylon-based powder similar to actual engineering thermoplastics, so
parts exhibit greater toughness and are accurate, but have rough surface and
lack fine details. SLS offers a large build volume, can produce parts with
highly complex geometries and create durable prototypes.

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Direct Metal Laser Sintering

Direct metal
laser sintering (DMLS) is one of three additive processes available at Vikled
Molding. DMLS uses a laser system that draws onto a surface of atomized metal
powder. Where it draws, it welds the powder into a solid. After each layer, a
blade adds a fresh layer of powder and repeats the process until a final metal
part is formed.
DMLS can use a variety of alloys, allowing prototypes to be functional hardware
made out of the same material as production components. Since the components
are built layer by layer, it is possible to design internal features and
passages that could not be cast or otherwise machined. DMLS produces
full-strength, functional metal parts with the same ease and speed as plastic
parts, with the potential to transition into metal injection molding when
increased production is needed.